1 /* 2 * QEMU PowerPC sPAPR IRQ backend definitions 3 * 4 * Copyright (c) 2018, IBM Corporation. 5 * 6 * This code is licensed under the GPL version 2 or later. See the 7 * COPYING file in the top-level directory. 8 */ 9 10 #ifndef HW_SPAPR_IRQ_H 11 #define HW_SPAPR_IRQ_H 12 13 /* 14 * IRQ range offsets per device type 15 */ 16 #define SPAPR_IRQ_IPI 0x0 17 #define SPAPR_IRQ_EPOW 0x1000 /* XICS_IRQ_BASE offset */ 18 #define SPAPR_IRQ_HOTPLUG 0x1001 19 #define SPAPR_IRQ_VIO 0x1100 /* 256 VIO devices */ 20 #define SPAPR_IRQ_PCI_LSI 0x1200 /* 32+ PHBs devices */ 21 22 #define SPAPR_IRQ_MSI 0x1300 /* Offset of the dynamic range covered 23 * by the bitmap allocator */ 24 25 typedef struct sPAPRMachineState sPAPRMachineState; 26 27 void spapr_irq_msi_init(sPAPRMachineState *spapr, uint32_t nr_msis); 28 int spapr_irq_msi_alloc(sPAPRMachineState *spapr, uint32_t num, bool align, 29 Error **errp); 30 void spapr_irq_msi_free(sPAPRMachineState *spapr, int irq, uint32_t num); 31 void spapr_irq_msi_reset(sPAPRMachineState *spapr); 32 33 typedef struct sPAPRIrq { 34 uint32_t nr_irqs; 35 uint32_t nr_msis; 36 uint8_t ov5; 37 38 void (*init)(sPAPRMachineState *spapr, Error **errp); 39 int (*claim)(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp); 40 void (*free)(sPAPRMachineState *spapr, int irq, int num); 41 qemu_irq (*qirq)(sPAPRMachineState *spapr, int irq); 42 void (*print_info)(sPAPRMachineState *spapr, Monitor *mon); 43 void (*dt_populate)(sPAPRMachineState *spapr, uint32_t nr_servers, 44 void *fdt, uint32_t phandle); 45 void (*cpu_intc_create)(sPAPRMachineState *spapr, PowerPCCPU *cpu, 46 Error **errp); 47 int (*post_load)(sPAPRMachineState *spapr, int version_id); 48 void (*reset)(sPAPRMachineState *spapr, Error **errp); 49 void (*set_irq)(void *opaque, int srcno, int val); 50 } sPAPRIrq; 51 52 extern sPAPRIrq spapr_irq_xics; 53 extern sPAPRIrq spapr_irq_xics_legacy; 54 extern sPAPRIrq spapr_irq_xive; 55 extern sPAPRIrq spapr_irq_dual; 56 57 void spapr_irq_init(sPAPRMachineState *spapr, Error **errp); 58 int spapr_irq_claim(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp); 59 void spapr_irq_free(sPAPRMachineState *spapr, int irq, int num); 60 qemu_irq spapr_qirq(sPAPRMachineState *spapr, int irq); 61 int spapr_irq_post_load(sPAPRMachineState *spapr, int version_id); 62 void spapr_irq_reset(sPAPRMachineState *spapr, Error **errp); 63 64 /* 65 * XICS legacy routines 66 */ 67 int spapr_irq_find(sPAPRMachineState *spapr, int num, bool align, Error **errp); 68 #define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp) 69 70 #endif 71